5640959 has 4 divisors (see below), whose sum is σ = 5685504. Its totient is φ = 5596416.

The previous prime is 5640953. The next prime is 5640961. The reversal of 5640959 is 9590465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5640959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5640953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22082 + ... + 22335.

It is an arithmetic number, because the mean of its divisors is an integer number (1421376).

Almost surely, 2^5640959 is an apocalyptic number.

5640959 is a deficient number, since it is larger than the sum of its proper divisors (44545).

5640959 is a wasteful number, since it uses less digits than its factorization.

5640959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44544.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 5640959 is about 2375.0703147486. The cubic root of 5640959 is about 178.0126974067.

The spelling of 5640959 in words is "five million, six hundred forty thousand, nine hundred fifty-nine".